#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <math.h>
int main()
{
	char i = '0';
	while (scanf("%c", &i)!=EOF)
	{
		if (i == 'A' || i == 'a' || i == 'I' || i == 'i' || i == 'O' || i == 'o' || i == 'E' || i == 'e' || i == 'U' || i == 'u'&&i!='\n')
			printf("Vowel\n");
		else
			if (i == '\n')
				;
			else
				printf("Consonant\n");
	}
	return 0;
}